feat: support PostgreSQL now

README.md

@@ -276,8 +276,10 @@ graph LR
    + 例子：`REDIS_CONN_STRING=redis://default:redispw@localhost:49153`
 2. `SESSION_SECRET`：设置之后将使用固定的会话密钥，这样系统重新启动后已登录用户的 cookie 将依旧有效。
    + 例子：`SESSION_SECRET=random_string`
-3. `SQL_DSN`：设置之后将使用指定数据库而非 SQLite，请使用 MySQL 8.0 版本。
-   + 例子：`SQL_DSN=root:123456@tcp(localhost:3306)/oneapi`
+3. `SQL_DSN`：设置之后将使用指定数据库而非 SQLite，请使用 MySQL 或 PostgreSQL。
+   + 例子：
+     + MySQL：`SQL_DSN=root:123456@tcp(localhost:3306)/oneapi`
+     + PostgreSQL：`SQL_DSN=postgres://postgres:123456@localhost:5432/oneapi`
    + 注意需要提前建立数据库 `oneapi`，无需手动建表，程序将自动建表。
    + 如果使用本地数据库：部署命令可添加 `--network="host"` 以使得容器内的程序可以访问到宿主机上的 MySQL。
    + 如果使用云数据库：如果云服务器需要验证身份，需要在连接参数中添加 `?tls=skip-verify`。

go.mod

@@ -18,7 +18,7 @@ require (
 	golang.org/x/crypto v0.9.0
 	gorm.io/driver/mysql v1.4.3
 	gorm.io/driver/sqlite v1.4.3
-	gorm.io/gorm v1.24.0
+	gorm.io/gorm v1.25.0
 )
 
 require (
@@ -36,6 +36,9 @@ require (
 	github.com/gorilla/context v1.1.1 // indirect
 	github.com/gorilla/securecookie v1.1.1 // indirect
 	github.com/gorilla/sessions v1.2.1 // indirect
+	github.com/jackc/pgpassfile v1.0.0 // indirect
+	github.com/jackc/pgservicefile v0.0.0-20221227161230-091c0ba34f0a // indirect
+	github.com/jackc/pgx/v5 v5.3.1 // indirect
 	github.com/jinzhu/inflection v1.0.0 // indirect
 	github.com/jinzhu/now v1.1.5 // indirect
 	github.com/json-iterator/go v1.1.12 // indirect
@@ -54,4 +57,5 @@ require (
 	golang.org/x/text v0.9.0 // indirect
 	google.golang.org/protobuf v1.30.0 // indirect
 	gopkg.in/yaml.v3 v3.0.1 // indirect
+	gorm.io/driver/postgres v1.5.2 // indirect
 )

go.sum

@@ -69,6 +69,12 @@ github.com/gorilla/sessions v1.2.1 h1:DHd3rPN5lE3Ts3D8rKkQ8x/0kqfeNmBAaiSi+o7Fsg
 github.com/gorilla/sessions v1.2.1/go.mod h1:dk2InVEVJ0sfLlnXv9EAgkf6ecYs/i80K/zI+bUmuGM=
 github.com/gorilla/websocket v1.5.0 h1:PPwGk2jz7EePpoHN/+ClbZu8SPxiqlu12wZP/3sWmnc=
 github.com/gorilla/websocket v1.5.0/go.mod h1:YR8l580nyteQvAITg2hZ9XVh4b55+EU/adAjf1fMHhE=
+github.com/jackc/pgpassfile v1.0.0 h1:/6Hmqy13Ss2zCq62VdNG8tM1wchn8zjSGOBJ6icpsIM=
+github.com/jackc/pgpassfile v1.0.0/go.mod h1:CEx0iS5ambNFdcRtxPj5JhEz+xB6uRky5eyVu/W2HEg=
+github.com/jackc/pgservicefile v0.0.0-20221227161230-091c0ba34f0a h1:bbPeKD0xmW/Y25WS6cokEszi5g+S0QxI/d45PkRi7Nk=
+github.com/jackc/pgservicefile v0.0.0-20221227161230-091c0ba34f0a/go.mod h1:5TJZWKEWniPve33vlWYSoGYefn3gLQRzjfDlhSJ9ZKM=
+github.com/jackc/pgx/v5 v5.3.1 h1:Fcr8QJ1ZeLi5zsPZqQeUZhNhxfkkKBOgJuYkJHoBOtU=
+github.com/jackc/pgx/v5 v5.3.1/go.mod h1:t3JDKnCBlYIc0ewLF0Q7B8MXmoIaBOZj/ic7iHozM/8=
 github.com/jinzhu/inflection v1.0.0 h1:K317FqzuhWc8YvSVlFMCCUb36O/S9MCKRDI7QkRKD/E=
 github.com/jinzhu/inflection v1.0.0/go.mod h1:h+uFLlag+Qp1Va5pdKtLDYj+kHp5pxUVkryuEj+Srlc=
 github.com/jinzhu/now v1.1.4/go.mod h1:d3SSVoowX0Lcu0IBviAWJpolVfI5UJVZZ7cO71lE/z8=
@@ -187,9 +193,13 @@ gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
 gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
 gorm.io/driver/mysql v1.4.3 h1:/JhWJhO2v17d8hjApTltKNADm7K7YI2ogkR7avJUL3k=
 gorm.io/driver/mysql v1.4.3/go.mod h1:sSIebwZAVPiT+27jK9HIwvsqOGKx3YMPmrA3mBJR10c=
+gorm.io/driver/postgres v1.5.2 h1:ytTDxxEv+MplXOfFe3Lzm7SjG09fcdb3Z/c056DTBx0=
+gorm.io/driver/postgres v1.5.2/go.mod h1:fmpX0m2I1PKuR7mKZiEluwrP3hbs+ps7JIGMUBpCgl8=
 gorm.io/driver/sqlite v1.4.3 h1:HBBcZSDnWi5BW3B3rwvVTc510KGkBkexlOg0QrmLUuU=
 gorm.io/driver/sqlite v1.4.3/go.mod h1:0Aq3iPO+v9ZKbcdiz8gLWRw5VOPcBOPUQJFLq5e2ecI=
 gorm.io/gorm v1.23.8/go.mod h1:l2lP/RyAtc1ynaTjFksBde/O8v9oOGIApu2/xRitmZk=
 gorm.io/gorm v1.24.0 h1:j/CoiSm6xpRpmzbFJsQHYj+I8bGYWLXVHeYEyyKlF74=
 gorm.io/gorm v1.24.0/go.mod h1:DVrVomtaYTbqs7gB/x2uVvqnXzv0nqjB396B8cG4dBA=
+gorm.io/gorm v1.25.0 h1:+KtYtb2roDz14EQe4bla8CbQlmb9dN3VejSai3lprfU=
+gorm.io/gorm v1.25.0/go.mod h1:L4uxeKpfBml98NYqVqwAdmV1a2nBtAec/cf3fpucW/k=
 rsc.io/pdf v0.1.1/go.mod h1:n8OzWcQ6Sp37PL01nO98y4iUCRdTGarVfzxY20ICaU4=

model/main.go

@@ -2,10 +2,12 @@ package model
 
 import (
 	"gorm.io/driver/mysql"
+	"gorm.io/driver/postgres"
 	"gorm.io/driver/sqlite"
 	"gorm.io/gorm"
 	"one-api/common"
 	"os"
+	"strings"
 	"time"
 )
 
@@ -34,28 +36,35 @@ func createRootAccountIfNeed() error {
 	return nil
 }
 
-func CountTable(tableName string) (num int64) {
-	DB.Table(tableName).Count(&num)
-	return
-}
-
-func InitDB() (err error) {
-	var db *gorm.DB
+func chooseDB() (*gorm.DB, error) {
 	if os.Getenv("SQL_DSN") != "" {
+		dsn := os.Getenv("SQL_DSN")
+		if strings.HasPrefix(dsn, "postgres://") {
+			// Use PostgreSQL
+			common.SysLog("using PostgreSQL as database")
+			return gorm.Open(postgres.New(postgres.Config{
+				DSN:                  dsn,
+				PreferSimpleProtocol: true, // disables implicit prepared statement usage
+			}), &gorm.Config{
+				PrepareStmt: true, // precompile SQL
+			})
+		}
 		// Use MySQL
 		common.SysLog("using MySQL as database")
-		db, err = gorm.Open(mysql.Open(os.Getenv("SQL_DSN")), &gorm.Config{
-			PrepareStmt: true, // precompile SQL
-		})
-	} else {
-		// Use SQLite
-		common.SysLog("SQL_DSN not set, using SQLite as database")
-		common.UsingSQLite = true
-		db, err = gorm.Open(sqlite.Open(common.SQLitePath), &gorm.Config{
+		return gorm.Open(mysql.Open(dsn), &gorm.Config{
 			PrepareStmt: true, // precompile SQL
 		})
 	}
-	common.SysLog("database connected")
+	// Use SQLite
+	common.SysLog("SQL_DSN not set, using SQLite as database")
+	common.UsingSQLite = true
+	return gorm.Open(sqlite.Open(common.SQLitePath), &gorm.Config{
+		PrepareStmt: true, // precompile SQL
+	})
+}
+
+func InitDB() (err error) {
+	db, err := chooseDB()
 	if err == nil {
 		if common.DebugEnabled {
 			db = db.Debug()